Comparative study of the effect of domain structures on piezoelectric properties in three typical Pb-free piezoceramics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Shengbo Lu
  • Zhengkui Xu
  • Ruzhong Zuo

Detail(s)

Original languageEnglish
Pages (from-to)13565-13571
Journal / PublicationCeramics International
Volume40
Issue number8 PART B
Publication statusPublished - Sep 2014

Abstract

The effect of domain structures on the piezoelectric properties of three typical lead-free piezoelectric ceramics, (1-x)Bi0.5Na 0.5TiO3-xBaTiO3, (Na0.52K 0.48-x)(Nb0.95-xTa0.05)O3- xLiSbO3 and 0.5Ba(Zr0.2Ti0.8)O 3-0.5(Ba0.7Ca0.3)TiO3, have been studied by transmission electron microscopy. By adding BaTiO3 in single phase Bi0.5Na0.5TiO3, domain structure changed from irregular domains into submicron lamellar domains and polar nano-regions. While in the later two system, regular submicron domains with nanodomains inside formed, which is an important feature of these two systems. It is suggested that the changes in domain structures in these systems have a dominant effect in the enhancement of the piezoelectric properties, comparing with single phase Bi0.5Na0.5TiO3, Na 0.5K0.5NbO3 and BaTiO3. © 2014 Elsevier Ltd and Techna Group S.r.l.

Research Area(s)

  • B. Electron microscopy, C. Piezoelectric properties, D. Perovskites